var obj = {
  // an entry with a very long string
  x: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  url: 'http://example.com/12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890',
  longName: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  [i]: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  [prop]: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  'x': "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  a: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  ab: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  abc: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  abcd: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  abcde: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  abcdef: "12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890",
  '古': 'https://prettier.io/docs/en/rationale.html#what-prettier-is-concerned-about',
  '古今': 'https://prettier.io/docs/en/rationale.html#what-prettier-is-concerned-about',
  '古体诗': 'https://prettier.io/docs/en/rationale.html#what-prettier-is-concerned-about',
};
